Question

A bird flies
due to north with speed 20m/s for 15s it tries
5s and then flies due south with speed 24m/s for 10 s. Find
average speed and magnitude of average velocity​

Answer 1

Answer:

Explanation:

Total distance travelled = 20*15 + 25*10  = 550

Average speed = Total distance travelled/ Total time taken

                          = 550/ 15+5+10

                          = 55/3 m/s

Total displacement = 20*15 - 25*10 = 50

Average velocity = 50/30

                            = 5/3 m/s